https://www.w3schools.com/Sql/func_sqlserver_nchar.asp
SQL Server NCHAR() Function
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sql serverfunction
https://docs.oracle.com/en/database/oracle/oracle-database/26/sqlrf/TO_NCHAR-character.html
TO_NCHAR (character)
character
https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/TO_NCHAR-datetime.html
TO_NCHAR (datetime)
datetime
https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/TO_NCHAR-datetime.html
TO_NCHAR (datetime)
datetime
https://learn.microsoft.com/en-us/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql?view=sql-server-ver17
nchar and nvarchar (Transact-SQL) - SQL Server | Microsoft Learn
Unicode character data types that are either fixed-size (nchar), or variable-size (nvarchar).
sql servertransactmicrosoftlearn